| Hydrocarbons(Higher Class) | C5 to C10 | NO.105 |
|
|
||
| Performance |
|
Measuring Range |
100 to 200 ppm |
200 to 3000 ppm |
|
Number of Pump Strokes |
2 |
1 |
|
Correction Factor |
1/2 |
1 |
|
Sampling Time |
4 minutes per pump stroke |
|
|
Detecting Limit |
20 ppm (n=2) |
|
|
Color Change |
White |
|
|
Reaction Principle |
Higher class hydrocarbons reduce iodine pentoxide to |
|
| Coefficient of Variation | 10% (for 200 to 1000 ppm), 5% (for 1000 to 3000 ppm) | |
| Shelf Life | 3 Years | |
| Corrections for temperature & humidity |
Unnecessary | |
| Store the tubes at cool and dark place. | ||
| Possible coexisting substances and their interferences | (NOTE) |
|
Substance |
Concentration |
Interference |
Change color by itself |
|
Acetylene, Ethylene |
0.1% |
Plus error |
Produce blackish brown |
|
Carbon monoxide |
0.1% |
Plus error |
Produce blackish brown |
|
Other organic solvents |
- |
Plus error |
Produce blackish brown |
| Other substance measurable with this detector tube |
|
Substance |
Correction Factor |
Pump Strokes |
Measuring Range |
|
Decane |
2.0 |
1 or 2 |
200 to 6000 ppm |
|
Heptane |
0.9 |
1 or 2 |
90 to 2700 ppm |
|
Hexane |
0.8 |
1 or 2 |
80 to 2400 ppm |
|
Nonane |
1.3 |
1 or 2 |
130 to 3900 ppm |
|
Octane |
1.0 |
1 or 2 |
100 to 3000 ppm |
| Calibration gas generation | Vaper pressure method | |
| TLV-TWA | TLV-STEL | Explosive range |
| - | - | - |
|
|
| Copyright(c) 2001 GASTEC CORPORATION. All rights reserved. |
Blackish brown